ADDITIONAL ADVANCE AND MODIFICATION AGREEMENT

Pursuant to the terms of a Loan Agreement between Borrower, Administrative Agent and Lenders, dated March 27, 2012, as modified by that certain letter dated March 15, 2013 and that certain letter dated April 10, 2013 (the “Loan Agreement”), Lenders made a loan to Borrower in the principal amount of up to $60,250,000 (the “Original Loan”). Capitalized terms used and not otherwise defined herein shall have the meanings given to them in the Loan Agreement.

The Original Loan is evidenced by that certain promissory note in the aggregate principal amount of the Original Loan (the “Original Note”), and is further evidenced by the documents described in the Loan Agreement as “Loan Documents”. The Original Note is secured by, among other things, that certain Deed of Trust recorded as a first priority lien on the Property (the “Original Deed of Trust”).

As of the date hereof, the commitment of the Loan is Fifty-Eight Million Seven Hundred Thousand Dollars ($58,700,000), of which $56,600,000 is outstanding and $2,100,000 remains undisbursed.

Borrower has now requested an additional advance of $16,300,000.00 (the “Additional Advance”), which Additional Advance will be used for the general limited liability company purposes of Borrower, including, without limitation, a return of equity to the direct and indirect owners of Borrower, and for any other lawful purposes, in Borrower’s sole and absolute discretion. Lenders are willing to make the Additional Advance, subject to the terms hereof.

The Original Note, the New Note (as defined below), the Original Deed of Trust, the New Deed of Trust (as defined below), the Loan Agreement, this Agreement, the other documents described in the Loan Agreement as “Loan Documents,” together with all modifications and amendments thereto and any documents required hereunder, are collectively referred to herein as “Loan Documents”.

CONDITIONS PRECEDENT.  The following are conditions precedent to Lender’s obligations under this Agreement:

The issuance by Commonwealth Land Title Insurance Company (the “Title Company”) of (a) a T-38 Endorsement to Title Policy No. L1017002769 (the “Original Policy”) insuring Administrative Agent that the Title Company will not deny coverage under the Original Policy as a result of the execution of this Agreement and the execution and recordation of the Memorandum of Additional Advance and Modification Agreement and Amendment of Deed of Trust executed by Borrower and Administrative Agent and dated the date hereof (the “Deed of Trust Amendment”), and (b) a TLTA Form T-2 Lender’s Policy of Insurance, insuring the lien of the New Deed of Trust (defined below), in the amount of the Additional Advance, as a second and valid lien upon the Property, subject only to such exceptions as have been approved by Administrative Agent in writing;

Receipt and approval by Administrative Agent of the executed originals of this Agreement, the Second Deed of Trust with Absolute Assignment of Leases and Rents, Security Agreement and Fixture Filing, executed by Borrower, as “Grantor”, in favor of Administrative Agent, for the benefit of Lender, as “Beneficiary” (the “New Deed of Trust”), that certain promissory note in the aggregate amount of the Additional Advance (the “New Note”), the Deed of Trust Amendment, the supplemental fee letter, executed by Borrower and ▇▇▇▇▇ Fargo (the “Supplemental Fee Letter”), and any and all other documents and agreements which are required pursuant to this Agreement or which Administrative Agent has requested pursuant to the Loan Documents, in form and content reasonably acceptable to Administrative Agent (this Agreement, the Supplemental Fee Letter, the New

Deed of Trust, the Deed of Trust Amendment and the New Note shall collectively hereinafter be referred to as the “Loan Modification Documents”);

Receipt and approval by Administrative Agent of resolutions from the Borrower, in form and substance reasonably satisfactory to Administrative Agent, authorizing the execution, delivery and performance of the Loan Modification Documents to which Borrower is a party and the transactions contemplated thereby.

Receipt and approval by Administrative Agent of an opinion of counsel to Borrower confirming Borrower’s authority to enter into this Agreement and the other documents contemplated herein and to perform its obligations under the Loan Modification Documents;

Recordation in the Official Records of the County where the Property is located of the New Deed of Trust and the Deed of Trust Amendment;

Borrower’s reimbursement to Administrative Agent of Administrative Agent’s reasonable costs and expenses incurred in connection with this Agreement and the transactions contemplated hereby, including, without limitation, title insurance costs, recording fees, attorneys’ fees, appraisal, engineers’ and inspection fees and documentation costs and charges, whether such services are furnished by Administrative Agent’s employees or agents or independent contractors;

The representations and warranties contained herein are true and correct in all material respects on and as of the date hereof as such representations and warranties apply to Borrower (except to the extent that any such representations and warranties expressly relate to an earlier date);

The payment to ▇▇▇▇▇ Fargo of any and all fees due and payable in accordance with the Supplemental Fee Letter.

REPRESENTATIONS AND WARRANTIES.   Borrower hereby represents and warrants that no Default, breach or failure of condition has occurred or exists, or would exist with notice or lapse of time or both, under any of the Loan Documents; and all representations and warranties of Borrower in this Agreement are true and correct and shall survive the execution of this Agreement.

ADDITIONAL ADVANCE. Subject to the terms and conditions of this Agreement, Lenders hereby grant to Borrower and Borrower hereby accepts an additional advance in the principal sum of Sixteen Million Three Hundred Thousand Dollars ($16,300,000.00). The Additional Advance shall be evidence by the New Note and secured by the New Deed of Trust. Upon satisfaction of the conditions precedent in Section 1 above, the Additional Advance, together with the $2,100,000 of undisbursed proceeds under the Original Note (i.e., the aggregate amount of $18,400,000) shall be disbursed to Borrower.

CONSOLIDATION. The indebtedness evidenced by the Original Note and the Additional Advance are hereby consolidated so as to constitute a single indebtedness of Borrower to Administrative Agent in the aggregate principal amount of Seventy-Five Million and 00/100ths Dollars ($75,000,000.00) (the “Aggregate Loan”). Except as provided in this Agreement, all references to the Loan in the Loan Documents are hereby amended to mean the Aggregate Loan.

CONFIRMATION OF REPRESENTATIONS AND WARRANTIES. Borrower hereby represents and warrants to Administrative Agent and Lenders as follows:

Borrower has the requisite limited liability company power and authority to enter into this Agreement and to perform its obligations hereunder and under the Loan Modification Documents. The execution, delivery and performance of this Agreement by Borrower and the performance of its obligations under this Agreement and any other Loan Modification Documents have been duly authorized by the members of Borrower and no other limited liability company proceedings on the part of Borrower are necessary to authorize the execution, delivery or performance of this Agreement, the transactions contemplated hereby or the performance of its obligations under this Agreement or any other Loan Modification Documents except for such as have been obtained or effected and true and correct copies of which have been delivered to Administrative Agent. This Agreement has been duly executed and delivered by Borrower. This Agreement and any other Loan

Modification Documents constitute the legal, valid and binding obligation of Borrower enforceable against it in accordance with its respective terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization or similar laws affecting creditors’ rights generally and by general principles of equity, whether such enforceability is considered in a proceeding at law or in equity.

The representations and warranties set forth in the Loan Agreement are true and correct in all material respects on and as of the date hereof as such representations and warranties apply to Borrower (except to the extent that any such representations and warranties expressly relate to an earlier date) with the same force and effect as if made on the date hereof.

FURTHER ASSURANCES.  At any time and from time to time, upon the Administrative Agent’s request and at the sole expense of Borrower, Borrower will promptly and duly execute and deliver any and all further instruments and documents and take such further action as the Administrative Agent reasonably deems necessary to effect the purposes of this Agreement.

MODIFICATION OF LOAN AGREEMENT.  The Loan Agreement is hereby supplemented and modified as follows:

The following definitions, as applicable, either amend or replace the corresponding defined terms in the Loan Agreement, or if such terms are not defined in the Loan Agreement, are hereby added to the Loan Agreement:

“Acceptable Counterparty” means ▇▇▇▇▇ Fargo (or its successors and assigns) or any counterparty to a Swap Agreement that has a long-term unsecured debt rating of at least “AA” by S&P and “Aa2” from Moody’s, which rating shall not include a “t” or otherwise reflect a termination risk.

“Aggregate Commitment” means, the sum of each Lender’s Commitment Amount, initially totaling $75,000,000, and subject to reduction in accordance with the terms of this Agreement.

“Allocated Share” means at any time, and from time to time, an amount expressed as a percentage that is calculated by dividing the cost basis of the Property by the cost basis of all real property owned directly or indirectly by KBS REIT or KBS Limited Partnership III.

“Cash Flow Sweep” shall have the meaning given to such term in Section 8.1.

“Cash Flow Collateral Account” shall have the meaning given to such term in Section 8.1.

“Cash Flow Sweep Commencement Date” shall have the meaning given to such term in Section 8.1.

“Closing Swap Agreement” means a Swap Agreement with an Acceptable Counterparty with a notional amount of not less than seventy-five percent (75%) of the Aggregate Commitment, a term expiring not sooner than March 27, 2017 and a fixed or maximum rate acceptable to Administrative Agent.

“Deed of Trust” means, individually or collectively, as the context requires, the Deed of Trust with Absolute Assignment of Leases and Rents, Security Agreement and Fixture Filing, executed by Borrower in favor of Administrative Agent, for the benefit of Lenders, and dated March 27, 2012, as amended by the First Amendment to Deed of Trust executed by Borrower and Administrative Agent and dated the date hereof, as the same may be further amended, supplemented, replaced or modified from time to time, and the Second Deed of Trust with Absolute Assignment of Leases and Rents, Security Agreement and Fixture Filing, executed by Borrower in favor of Administrative Agent, for the benefit of Lenders, and dated April 15, 2013, as the same may be amended, supplemented, replaced or modified from time to time.

“Free Cash Flow” means, for a particular period, Gross Operating Income for such period minus (a) debt service on the Loan for such period, (b) any Permitted Operating Expenses actually incurred for such period, (c) the REIT Operating Expense, (d) accrued liability for taxes and insurance for such period and (e) any other expenses relating to the Property actually incurred for such period, provided

such expenses are approved, in advance, by Administrative Agent, which approval shall not be unreasonably withheld, conditioned or delayed.

“KBS Limited Partnership III” means KBS Limited Partnership III, a Delaware limited partnership.

“Loan” means the cumulative principal amount of up to Seventy-Five Million Dollars ($75,000,000).

“Loan Constant” means a fraction, expressed as a percentage, determined by dividing the Net Operating Income of the Property by the Aggregate Commitment at the time of determination.

“Maturity Date” means March 27, 2018.

“Minimum Loan Constant” shall have the meaning given to such term in Section 8.1.

“Moody’s” means ▇▇▇▇▇’▇ Investors Service, Inc. and any successor thereto.

“Note” or “Notes” – means, individually or collectively, (i) the Secured Promissory Note, dated March 27, 2012, in the original principal amount of $60,250,000, executed by Borrower and payable to the order of ▇▇▇▇▇ Fargo (the “Original Note”), and (ii) that certain Second Secured Promissory Note executed by Borrower and payable to the order of ▇▇▇▇▇ Fargo, dated April 15, 2013, in the original principal amount of $16,300,000, as each of the same may be amended, supplemented, replaced or modified from time to time (the “Additional Advance Note”), together with such other replacement notes as may be issued from time to time pursuant to Section 13.13.

“Permitted Operating Expenses” – shall mean the following expenses to the extent that such expenses are reasonable in amount and customary for properties of the same type as the Property: (i) taxes and assessments imposed upon the Property to the extent that such taxes and assessments are required to be paid by Borrower and are actually paid or reserved for by Borrower; (ii) bond assessments; (iii) insurance premiums for casualty insurance (including, without limitation, earthquake and terrorism coverage) and liability insurance carried in connection with the Property to the extent that such premiums are actually paid or reserved for by Borrower, provided, however, if any, insurance is maintained as part of a blanket policy covering the Property and other properties, the insurance premium included in this subparagraph shall be the premium fairly allocable to the Property; and (iv) operating expenses and capital expenditures incurred by Borrower for the management, operation, cleaning, leasing, maintenance and repair of the Property in the ordinary course. Permitted Operating Expenses shall not include any interest or principal payments on the Loan or any allowance for depreciation.

“REIT Operating Expenses” means the Allocated Share of all actual costs, expenses and/or amounts incurred by, or payable or reimbursable by, KBS REIT or KBS Limited Partnership III for any of the following: (a) charges and fees charged by banks, audit fees, tax preparation fees, legal fees, transfer agent fees, accounting consulting fees related to emerging technical pronouncements, tax consulting fees relating to Real Estate Investment Trust issues, due diligence costs and fees arising from state and local taxes, fees and expenses incurred in connection with annual corporate filings, and local, state and federal income taxes, and (b) professional fees related to corporate structuring and/or filings, consulting fees and filing fees arising from SEC reporting requirements including, without limitation, 10K filings, 10Q filings, and 8K filings, consulting fees and other fees and costs related to ▇▇▇▇▇▇▇▇- ▇▇▇▇▇ ▇▇▇, ▇▇▇▇-▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇ Reform and Consumer Protection Act or any other similar compliance requirements.

“S&P” means Standard & Poor’s Ratings Services, a division of The ▇▇▇▇▇▇-▇▇▇▇ Companies, Inc.

The following definitions from the Loan Agreement are hereby deleted in their entirety:

Domain Gateway/Las Cimas Release Payment

Leasing Holdback

Other Borrowers

Other Loan

Section 2.1 of the Loan Agreement is hereby deleted and replaced in its entirety with the following:

Loan. By and subject to the terms of this Agreement, Administrative Agent and Lenders have agreed to make a loan to Borrower in the aggregate principal sum of up to Seventy-Five Million Dollars ($75,000,000), which Loan shall be evidenced by the Notes. Each Note shall be secured, in part, by the applicable Deed of Trust encumbering the Property. The Loan may not be repaid and reborrowed.

Section 2.2. The second sentence of Section 2.2 of the Loan Agreement is hereby deleted and replaced in its entirety with the following.

Additionally, Borrower shall pay to Administrative Agent for Administrative Agent’s sole benefit certain other fees, each in the amount and at the times as set forth in separate letter agreements between Borrower and Administrate Agent dated (a) March 27, 2012 and (b) April 15, 2013 (the “Fee Letter”).

The following is inserted as Section 2.6 of the Loan Agreement (previously marked as “Intentionally Deleted”):

Section 2.8(d)(i). The last sentence of Section 2.8(d)(i) of the Loan Agreement is hereby deleted in its entirety.

Section 2.9 of the Loan Agreement is hereby deleted and replaced in its entirety with the following:

Section 2.10 of the Loan Agreement is hereby deleted in its entirety.

Section 3.5 of the Loan Agreement is hereby deleted in its entirety.

Article 8 is hereby added to the Loan Agreement, as follows:

Loan Constant Coverage. In the event that any Borrower’s Certificate delivered in accordance with Section 10.1(c) with respect to any Fiscal Quarter ending on or after June 30, 2013 indicates that the Net Operating Income from the Property at the end of the previous Fiscal Quarter yields a Loan Constant of less than nine and one-half percent (9.5%) (the “Minimum Loan Constant”), then commencing on the date on which a Borrower’s Certificate evidences Borrower’s failure to satisfy the Minimum Loan Constant (or, if Borrower fails to timely deliver a Borrower’s Certificate, then commencing on the date on which such

Borrower’s Certificate is due) (the “Cash Flow Sweep Commencement Date”), Borrower shall be required to deliver some or all of the Free Cash Flow from the Property (as provided in this Section 8.1 below) to Administrative Agent (the “Cash Flow Sweep”); provided, that such Free Cash Flow shall be delivered by Borrower to Administrative Agent only one time per month (with such delivery to be made within ten (10) days after the end of the month on account of which Borrower is delivering such Free Cash Flow); provided further, however, that notwithstanding the fact that a Borrower’s Certificate identifying Borrower’s failure to satisfy the Minimum Loan Constant is not due until forty-five (45) days after the end of a Fiscal Quarter, Borrower shall be obligated to deposit Free Cash Flow with Administrative Agent on account of the month immediately following the expiration of the Fiscal Quarter in which Borrower fails to satisfy the Minimum Loan Constant, provided, such deposit shall be required to be made by Borrower on the tenth (10^th) day of the month immediately following the month during which the Borrower’s Certificate is delivered (or was required to be delivered). (By way of example, if Borrower fails to satisfy the Minimum Loan Constant for the quarter ending March 31, 2014, then Borrower shall deposit such portion of its Free Cash Flow from April and May, 2014 as it would be required to deposit in accordance with this Section 8.1 on June 10, 2014). Upon receipt thereof, Administrative Agent shall deposit such funds into an interest-bearing blocked account with ▇▇▇▇▇ Fargo Bank in the name of Borrower (which account is hereby pledged as collateral for the Loan), from which Borrower shall be entitled to disbursements, subject to Section 8.2 below (the “Cash Flow Collateral Account”). The percentage of Free Cash Flow to be delivered to Administrative Agent by Borrower pursuant to the foregoing shall be determined as follows:

If Net Operating Income from the Property yields a Loan Constant greater than or equal to eight and one-half percent (8.5%), but less than nine and one-half percent (9.5%), then Borrower shall be required to deliver two-thirds (2/3) of the Free Cash Flow from the Property to Administrative Agent until such time as the Net Operating Income from the Property yields a Loan Constant of ten percent (10%), as evidenced by a Borrower’s Certificate delivered in accordance with Section 10.1(c). Notwithstanding the foregoing, rather than delivering two-thirds (2/3) of the Free Cash Flow from the Property to Administrative Agent, Borrower may elect to repay (either from its own funds or by causing Administrative Agent to apply funds then on deposit in the Cash Flow Collateral Account, which Administrative Agent shall do at Borrower’s request so long as a Default does not then exist) such portion of the outstanding principal amount of the Loan as would cause Net Operating Income from the Property to yield a Loan Constant of ten percent (10%); provided, however, that if such repayment is made by Borrower in connection with Borrower’s delivery of a Borrower’s Certificate that would have triggered a Cash Flow Sweep Commencement Date (i.e., immediately prior to delivery of the then-current Borrower’s Certificate, a Cash Flow Sweep was not in effect), then Borrower shall be permitted to repay (either from its own funds or by causing Administrative Agent to apply funds then on deposit in the Cash Flow Collateral Account, which Administrative Agent shall do at Borrower’s request so long as a Default does not then exist) such portion of the outstanding principal amount of the Loan as would cause Net Operating Income from the Property to yield a Loan Constant of nine and one-half percent (9.5%) (instead of ten percent (10%)) in order to avoid the Cash Flow Sweep;

If Net Operating Income from the Property yields a Loan Constant less than eight and one-half percent (8.5%), then Borrower shall be required to deliver one hundred percent (100%) of the Free Cash Flow from the Property to Administrative Agent until such time as the Net Operating Income from the Property yields a Loan Constant of ten percent (10%), as evidenced by a Borrower’s Certificate delivered in accordance with Section 10.1(c). Notwithstanding the foregoing, rather than delivering one hundred percent (100%) of the Free Cash Flow from the Property to Administrative Agent, Borrower may elect to repay (either from its own funds or by causing Administrative Agent to apply funds then on deposit in the Cash Flow Collateral Account, which Administrative Agent shall do at Borrower’s request so long as a Default does not then exist) such portion of the outstanding principal amount of the Loan as would cause Net Operating Income from the Property to yield a Loan Constant of either (i) nine and one-half percent (9.5%), in which case Borrower shall be required to deliver two-thirds (2/3) of the Free Cash Flow from the Property to Administrative Agent until such time as the Net Operating Income from the Property yields a Loan Constant of ten percent (10%) or (ii) ten percent (10%), in which case

Borrower shall not be required to deliver any Free Cash Flow from the Property to Administrative Agent.

Cash Flow Collateral Accounts.  Provided no Default has occurred and is continuing, Borrower shall have the right to receive disbursements of funds from the Cash Flow Collateral Account as follows:

At Borrower’s request, Administrative Agent shall disburse funds from the Cash Flow Collateral Account (within five (5) Business Days after Borrower’s request) at Borrower’s option to pay for the actual costs incurred by Borrower for tenant improvement costs, leasing commissions and pre-approved (by Administrative Agent) capital expenditures identified in the capital budgets delivered by Borrower to Administrative Agent pursuant to Section 10.1(d); provided, in no event shall Administrative Agent be required to disburse any amount for tenant improvement costs and/or leasing commissions in excess of the appraisal estimates for such costs on a dollars per square foot basis, as reflected in the most recent Appraisal of the Property.

So long as a one hundred percent (100%) Cash Flow Sweep is not then in effect, Administrative Agent shall, at Borrower’s request, disburse funds from the Cash Flow Collateral Account (within five (5) Business Days after Borrower’s request) to or for the benefit of Borrower for the purpose of paying REIT Operating Expenses; provided, that the amount to be disbursed from the Cash Flow Collateral Account pursuant to this clause (b) during any Fiscal Quarter may not exceed $250,000 (except that it may not exceed $400,000 for the first Fiscal Quarter of each year), and the cumulative amount of all disbursements from the Cash Flow Collateral Account pursuant to this clause (b) may not exceed $650,000.

Disbursement of Funds in Cash Flow Collateral Accounts.  Provided a Default has not occurred which is continuing, within fifteen (15) days after Borrower’s request given at any time after Borrower delivers its second consecutive Borrower’s Certificate confirming that Net Operating Income from the Property is sufficient to yield a Loan Constant of not less than ten percent (10%), Administrative Agent shall disburse all funds in the Cash Flow Collateral Account to or for the benefit of Borrower.

Section 9.22 is hereby added to the Loan Agreement, as follows:

Section 10.1(c)(iii) of the Loan Agreement is hereby deleted and replaced in its entirety with the following:

Each Borrower’s Certificate referenced in subsections (i) and (ii) above shall also (A) contain a certification by the individual who is the signatory thereto that Borrower is in compliance with all covenants contained herein, (B) shall provide a schedule of contingent liabilities of Borrower consisting of letters of credit and guaranties of debt, together with a listing of contingent liabilities arising from trade payables that have been outstanding for more than thirty (30) days and equipment leases, (C) shall state whether or not such contingent liabilities arising from trade payables outstanding for more than thirty (30) days and operating and equipment leases and exceed the amount permitted under Section 9.13, and (D) shall contain a calculation of the Loan Constant.

Schedule 1.1 attached to the Loan Agreement is hereby deleted in its entirety and replaced with Schedule 1.1 hereto.

Exhibit B-1 hereto supplements and amends Exhibit B attached to the Loan Agreement.

Exhibit G attached to the Loan Agreement is hereby deleted in its entirety and replaced with Exhibit G hereto.

Exhibit H attached to the Loan Agreement is hereby deleted in its entirety and replaced with Exhibit H hereto.

INCORPORATION OF RECITALS; EFFECTIVE DATE. The foregoing recitals are incorporated herein as an agreement of Borrower, Administrative Agent and Lenders. The date of this Agreement is for reference purposes only. The effective date of Borrower’s and Lenders’ obligations under this Agreement is the date of disbursement of the Additional Advance.

NON-IMPAIRMENT. Except as expressly provided herein nothing in this Agreement shall alter or affect any provision, condition or covenant contained in any Deed of Trust or any other Loan Document, or affect or impair any rights, powers, or remedies thereunder, it being the intent of the parties hereto that the provisions of each Deed of Trust and the other Loan Documents shall continue in full force and effect except as expressly modified hereby.

MISCELLANEOUS. This Agreement and the other Loan Documents (excepting the Deed of Trust) shall be governed by and interpreted in accordance with the laws of the State of California, except if preempted by federal law. In any action brought or arising out of this Agreement or the Loan Documents, Borrower, and the general partners and joint venturers of Borrower, hereby consent to the jurisdiction of any federal or state court having proper venue within the State of California and also consent to the service of process by any means authorized by California or federal law. The headings used in this Agreement are for convenience only and shall be disregarded in interpreting the substantive provisions of this Agreement. Time is of the essence of each term of the Loan Documents, including this Agreement. If any provision of this Agreement or any of the other Loan Documents shall be determined by a court of competent jurisdiction to be invalid, illegal or unenforceable, that portion shall be deemed severed therefrom and the remaining parts shall remain in full force as though the invalid, illegal, or unenforceable portion had never been a part thereof.

INTEGRATION; INTERPRETATION. The Loan Documents, including this Agreement, contain or expressly incorporate by reference the entire agreement of the parties with respect to the matters contemplated therein and supersede all prior negotiations. The Loan Documents shall not be modified except by written instrument executed by all parties. Any reference to the Loan Documents in any of the Loan Documents includes any amendments, renewals or extensions approved by Lender.

EXECUTION IN COUNTERPARTS. To facilitate execution, this document may be executed in as many counterparts as may be convenient or required. It shall not be necessary that the signature of, or on behalf of, each party, or that the signature of all persons required to bind any party, appear on each counterpart. All counterparts shall collectively constitute a single document. It shall not be necessary in making proof of this document to produce or account for more than a single counterpart containing the respective signatures of, or on behalf of, each of the parties hereto. Any signature page to any counterpart may be detached from such counterpart without impairing the legal effect of the signatures thereon and thereafter attached to another counterpart identical thereto except having attached to it additional signature pages.

LIMITATIONS ON PERSONAL LIABILITY. The limitations on personal liability of the shareholders, partners and members of the Borrowers contained in Section 13.27 of the Loan Agreement shall apply to this Agreement and are incorporated herein by this reference.

            “ADMINISTRATIVE AGENT” and “LENDER”

▇▇▇▇▇ FARGO BANK,

NATIONAL ASSOCIATION

/s/ ▇▇▇▇▇ ▇▇▇▇▇▇▇

                         “BORROWER”

KBSIII LEGACY TOWN CENTER, LLC,

a Delaware limited liability company

KBSIII REIT ACQUISITION III, LLC,

a Delaware limited liability company,

its sole member

KBS REIT PROPERTIES III, LLC, a Delaware limited liability company,

its sole member

KBS LIMITED PARTNERSHIP III, a Delaware limited partnership,

its sole member

KBS REAL ESTATE INVESTMENT TRUST III, INC., a Maryland corporation,

its general partner

/s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇, ▇▇.

▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇, ▇▇.,

Chief Executive Officer

▇▇▇▇▇ FARGO BANK, NATIONAL ASSOCIATION

TOTALS

Maximum Initial Loan
Disbursement

Amount¹

Maximum Subsequent

Loan Disbursement

Amount¹

1.  

2.  

3.  

4.  

5.  

Applicable for Wire Transfer. Lender is hereby authorized to accept wire transfer instructions for the Initial Loan Disbursement from                                  (i.e. specify title/escrow company), which instructions are to be delivered, via fax, email, or letter, to Lender. Said instructions shall include the Borrower’s Name; Title/Escrow #                                 and/or Loan #1006987; the person/entity to receive the Initial Loan Disbursement (“Receiving Party”); the Receiving Party’s full account name; Receiving Party’s account number at the receiving bank (“Receiving Bank”); Receiving Bank’s (ABA) routing number; city and state of the Receiving Bank; and the amount of the Initial Loan Disbursement (not to exceed the Maximum Initial Loan Disbursement Amount set forth above).

Applicable for Deposit into Deposit Account. Lender is hereby authorized to accept deposit instructions for the Initial Loan Disbursement from an Authorized Representative of Borrower to be delivered, via fax, email, or letter, to Lender for deposit into deposit account #                                  (“Deposit Account”) held at                                 . Said instructions shall include: the Borrower’s name; Title/Escrow #                                 and/or Loan #1006987; the Deposit Account name; the Deposit Account number; the ABA routing number of the bank where the Deposit Account is held; city and state of the bank where the Deposit Account is held; and the amount of the Initial Loan Disbursement (not to exceed the Maximum Initial Loan Disbursement Amount.)

Not Applicable

Applicable for Wire Transfer. Lender is hereby authorized to accept wire transfer instructions for the Subsequent Loan Disbursement from                                  (i.e. specify title/escrow company), which instructions are to be delivered, via fax, email, or letter, to Lender. Said instructions shall include the Borrower’s Name; Title/Escrow #                                 and/or Loan #1006987; the person/entity to receive the Subsequent Loan Disbursement (“Receiving Party”); the Receiving Party’s full account name; Receiving Party’s account number at the receiving bank (“Receiving Bank”); Receiving Bank’s (ABA) routing number; city and state of the Receiving Bank; and the amount of the Subsequent Loan Disbursement (not to exceed the Maximum Subsequent Loan Disbursement Amount set forth above).

Applicable for Deposit into Deposit Account. Lender is hereby authorized to accept deposit instructions for any Subsequent Loan Disbursement from an Authorized Representative of Borrower to be delivered, via fax, email, or letter, to Lender for deposit into deposit account #                                  (“Deposit Account”) held at                                 . Said instructions shall include: the Borrower’s name; Title/Escrow #                                 (if applicable) and/or Loan #1006987; the Deposit Account name; the Deposit Account number; the ABA routing number of the bank where the Deposit Account is held; city and state of the bank where the Deposit Account is held; and the amount of the Subsequent Loan Disbursement (not to exceed the Maximum Subsequent Loan Disbursement Amount).

Borrower Name:

Title/Escrow Number:

Loan Number:

Transfer/Deposit Funds to (Receiving Party Account Name):

Receiving Party Deposit Account Number:

Receiving Bank Name, City and State:

Receiving Bank Routing (ABA) Number:

Disbursement Amount (Not to exceed the Maximum Initial Loan Disbursement Amount):

Further Credit Information/Instructions:

Borrower Name:

Title/Escrow Number:

Loan Number:

Transfer/Deposit Funds to (Receiving Party Account Name):

Receiving Party Deposit Account Number:

Receiving Bank Name, City and State:

Receiving Bank Routing (ABA) Number:

Disbursement Amount (Not to exceed the Maximum Initial Loan Disbursement Amount):

Further Credit Information/Instructions:

Borrower Name:

Title/Escrow Number:

Loan Number:

Transfer/Deposit Funds to (Receiving Party Account Name):

Receiving Party Deposit Account Number:

Receiving Bank Name, City and State:

Receiving Bank Routing (ABA) Number:

Disbursement Amount (Not to exceed the Maximum Subsequent Loan Disbursement Amount nor an amount, in the aggregate with all prior disbursements, would exceed the Loan Amount):

Further Credit Information/Instructions:

Borrower Name:

Title/Escrow Number:

Loan Number:

Transfer/Deposit Funds to (Receiving Party Account Name):

Receiving Party Deposit Account Number:

Receiving Bank Name, City and State:

Receiving Bank Routing (ABA) Number:

Disbursement Amount (Not to exceed the Maximum Subsequent Loan Disbursement Amount nor an amount, in the aggregate with all prior disbursements, would exceed the Loan Amount ):

Further Credit Information/Instructions:

Neither the Initial Disbursement Amount, nor the Initial Disbursement Amount together with any Subsequent Disbursement Amounts, shall ever exceed the Loan Amount.

KBSIII LEGACY TOWN CENTER, LLC,

a Delaware limited liability company

By:

KBSIII REIT ACQUISITION III, LLC,

a Delaware limited liability company,

its sole member

By:

KBS REIT PROPERTIES III, LLC,

a Delaware limited liability company,

its sole member

By:

KBS LIMITED PARTNERSHIP III,

a Delaware limited partnership,

its sole member

By:

KBS REAL ESTATE INVESTMENT TRUST III, INC.,

a Maryland corporation,

general partner

By:

▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇, ▇▇.

Chief Executive Officer

DOC. REF.

ACTUAL

REQUIRED

COMPLY

Sec. 9.13 Clauses (ii) and (v)

Loan Constant

Certified By:

[                                     ]

Date:                 , 20    

Operating and Equipment Lease Expense

Other Trade Payables (other than non-delinquent real estate taxes)

Total

Net Operating Income

Aggregate Commitment

Loan Constant

                     “BORROWER”

KBSIII LEGACY TOWN CENTER, LLC,

a Delaware limited liability company

By:

KBSIII REIT ACQUISITION III, LLC,

a Delaware limited liability company,

its sole member

By:

KBS REIT PROPERTIES III, LLC,

a Delaware limited liability company,

its sole member

By:

KBS LIMITED PARTNERSHIP III,

a Delaware limited partnership,

its sole member

By:

KBS REAL ESTATE INVESTMENT TRUST III, INC.,

a Maryland corporation,

its general partner

By:

▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇, ▇▇.,

Chief Executive Officer